Seekermaker 2 In 1 USB Micro OTG Phone Fan Multifunction Portable Air Fan For Android Phone Samsung HTC LG Computer Power Bank (Blue) Mini design,ultra-quiet,strong wind,simple sense is good,Please note that cell phone must have OTG function to use fan. Model is made of TPE environmental protection material,soft and safe,easy to carry. The motor speed can reach 16000RPM,durable ,upto 100 hours continuous working hours at maximum. Compatible with all usb 2.0,notebook,power adapter ,suitable for android port. The appearance of the unique,Fan blade is stripe pattern, spin more beautiful